Finding the Fourth Proportional to 1,689,257.53, 2,331,174.65 and 914,888.40
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Solution
The fourth proportional to 1,689,257.53, 2,331,174.65 and 914,888.40 is: 1,262,545.60
Step by Step Solution
- Step 1: Write the proportion equation
1,689,257.53 : 2,331,174.65 = 914,888.40 : x - Step 2: Convert to fraction form
1,689,257.53/2,331,174.65 = 914,888.40/x - Step 3: Cross multiply
1,689,257.53x = 2,331,174.65 × 914,888.40 - Step 4: Simplify right side
1,689,257.53x = 2,132,764,651,541.94 - Step 5: Solve for x
x = 2,132,764,651,541.94/1,689,257.53 - Step 6: Final answer
x = 1,262,545.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.